NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 217
ONVOY, LLC 3
NEW CINGULAR WIRELESS PCS, LLC - IL 3
EXIANT COMMUNICATIONS LLC 3
OPENTACT INC. 1
New assignments by month Sep 2026 Aug 2026 Jul 2026 Jun 2026 May 2026 Apr 2026 Mar 2026 Feb 2026 Jan 2026 Dec 2025 Nov 2025 Oct 2025
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-09-01 217-323-0XXX 0000–0999Assigned UNITED STATES CELLULAR - IL 6265 BEARDSTOWN IL
2021-08-26 217-480-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHAMPAURBN IL
2021-08-24 217-651-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LINCOLN IL
2021-08-24 217-707-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 TAYLORVL IL
2021-08-19 217-974-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAMPAURBN IL
2021-08-19 217-974-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAMPAURBN IL
2021-08-19 217-974-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAMPAURBN IL
2021-08-19 217-974-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHAMPAURBN IL
2021-08-16 217-609-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CASEY IL
2021-08-11 217-302-7XXX 7000–7999Assigned ONVOY, LLC 224C WARRENSBG IL
2021-08-11 217-860-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHATHAM IL
2021-08-11 217-881-7XXX 7000–7999Assigned ONVOY, LLC 224C SHUMWAY IL
2021-08-03 217-809-6XXX 6000–6999Assigned COMMIO, LLC 939H DECATUR IL
2021-08-03 217-809-7XXX 7000–7999Assigned COMMIO, LLC 939H DECATUR IL
2021-08-03 217-809-8XXX 8000–8999Assigned COMMIO, LLC 939H DECATUR IL
2021-08-03 217-809-9XXX 9000–9999Assigned COMMIO, LLC 939H DECATUR IL
2021-07-29 217-906-8XXX 8000–8999Assigned ONVOY, LLC 224C BUFFALO IL
2021-07-26 217-275-0XXX 0000–0999Assigned ONVOY, LLC 224C VERMILION IL
2021-07-22 217-860-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHATHAM IL
2021-07-21 217-340-5XXX 5000–5999Assigned ONVOY, LLC 224C MARSHALL IL
2021-07-21 217-340-6XXX 6000–6999Assigned ONVOY, LLC 224C MARSHALL IL
2021-07-21 217-631-2XXX 2000–2999Assigned ONVOY, LLC 224C MONTICELLO IL
2021-07-21 217-631-3XXX 3000–3999Assigned ONVOY, LLC 224C MONTICELLO IL
2021-07-20 217-986-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2021-07-20 217-986-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SPRINGFLD IL
2021-07-14 217-374-4XXX 4000–4999Assigned ONVOY, LLC 224C WHITE HALL IL
2021-07-14 217-595-3XXX 3000–3999Assigned ONVOY, LLC 224C PENFIELD IL
2021-07-14 217-625-1XXX 1000–1999Assigned ONVOY, LLC 224C PAWNEE IL
2021-07-14 217-673-8XXX 8000–8999Assigned ONVOY, LLC 224C WOODSON IL
2021-07-14 217-681-5XXX 5000–5999Assigned ONVOY, LLC 224C VILLAGROVE IL
2021-07-14 217-705-6XXX 6000–6999Assigned ONVOY, LLC 224C GIRARD IL
2021-07-14 217-763-5XXX 5000–5999Assigned ONVOY, LLC 224C CERROGORDO IL
2021-07-14 217-815-2XXX 2000–2999Assigned ONVOY, LLC 224C NIOTA IL
2021-07-14 217-858-9XXX 9000–9999Assigned ONVOY, LLC 224C THOMASBORO IL
2021-07-14 217-886-5XXX 5000–5999Assigned ONVOY, LLC 224C LITERBERRY IL
2021-07-14 217-905-2XXX 2000–2999Assigned ONVOY, LLC 224C WINDSOR IL
2021-07-14 217-967-2XXX 2000–2999Assigned ONVOY, LLC 224C WESTFIELD IL
2021-07-13 217-478-0XXX 0000–0999Assigned ONVOY, LLC 224C ALEXANDER IL
2021-07-13 217-500-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 EFFINGHAM IL
2021-07-13 217-574-8XXX 8000–8999Assigned ONVOY, LLC 224C FAIRMOUNT IL
2021-07-13 217-604-4XXX 4000–4999Assigned ONVOY, LLC 224C CARTHAGE IL
2021-07-13 217-702-2XXX 2000–2999Assigned ONVOY, LLC 224C CARROLLTON IL
2021-07-13 217-776-4XXX 4000–4999Assigned ONVOY, LLC 224C COLLISON IL
2021-07-13 217-897-3XXX 3000–3999Assigned ONVOY, LLC 224C FISHER IL
2021-07-13 217-928-2XXX 2000–2999Assigned ONVOY, LLC 224C ARTHUR IL
2021-07-06 217-929-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MATTOON IL
2021-07-06 217-929-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MATTOON IL
2021-07-06 217-929-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MATTOON IL
2021-07-06 217-929-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MATTOON IL
2021-07-06 217-929-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MATTOON IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.